Johnson “has become an influential voice in his party because of his outspoken nature and eagerness to weigh in on issues even when his position is unpopular,” said Barry Burden, a UW-Madison political science professor and the director of the Elections Research Centerthere, in an email.
“But Johnson is unlikely to become party leader because he has not developed a network of trusting relationships with his colleagues,” Burden continued. “Although fellow Republicans often appreciate his bold critiques of Democrats and other authority figures, Johnson has not shown himself to be a coalition builder who carefully attends to the concerns of his Senate colleagues. He tends to oppose measures that are moving forward rather than finding ways to bring them to fruition.”